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420-4000 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

420-4000: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE COVER, wall_thickness: 13.0 MILLIMETERS NOMINAL MM, inside_diameter: 4.0 INCHES NOMINAL BOTH ENDS IN, style_designator: FULLY CONVOLUTED, end_item_identification: BOAT,PATROL, cross-sectional_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-645-4838, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
420-4000
NSN: 4720-01-645-4838
FSC: 4720 — Hose and Flexible Tubing
CAGE: 1K7H6 — MARINE PRODUCTS INTL (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE COVER
wall_thickness13.0 MILLIMETERS NOMINAL MM
inside_diameter4.0 INCHES NOMINAL BOTH ENDS IN
style_designatorFULLY CONVOLUTED
end_item_identificationBOAT,PATROL
cross-sectional_shape_styleROUND
measuring_method_and_length200.0 FEET NOMINAL EXCLUDING END FITTINGS FT
part_name_assigned_by_controlling_agencyHD VINLY BLOWER HOSE SERIES 420
NSN4720-01-645-4838
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 420-4000 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MEASURING METHOD AND LENGTH: 200.0 FEET NOMINAL EXCLUDING END FITTINGS FT
•
STYLE DESIGNATOR: FULLY CONVOLUTED
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
WALL THICKNESS: 13.0 MILLIMETERS NOMINAL MM
•
INSIDE DIAMETER: 4.0 INCHES NOMINAL BOTH ENDS IN
•
MATERIAL: STEEL REINFORCING WIRE
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH200.0 FEET NOMINAL EXCLUDING END FITTINGS FT
STYLE DESIGNATORFULLY CONVOLUTED
CROSS-SECTIONAL SHAPE STYLEROUND
WALL THICKNESS13.0 MILLIMETERS NOMINAL MM
INSIDE DIAMETER4.0 INCHES NOMINAL BOTH ENDS IN
PART NAME ASSIGNED BY CONTROLLING AGENCYHD VINLY BLOWER HOSE SERIES 420
END ITEM IDENTIFICATIONBOAT,PATROL
MATERIALSTEEL REINFORCING WIRE
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE COVER
OTHER ITEMS IN FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080 4720-00-000-0081 4720-00-000-0084 4720-00-000-0724 4720-00-001-0014 4720-00-001-0015 4720-00-001-0023 4720-00-001-0025
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 420-4000?
420-4000 is a HOSE,AIR DUCT.
What is the NSN for 420-4000?
420-4000 is cataloged in the U.S. Government catalog under NSN 4720-01-645-4838. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.